when i have an inequality like this , If i were to find , can i say that ?? And if the value at the side are negative , for instance If i were find range of , am i right in saying . Rearrange
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Yes, you can
Originally Posted by songoku Yes, you can THanks . How about only one of its side is negative ? TO find , do i do that this way : Then rearrange
Originally Posted by thereddevils THanks . How about only one of its side is negative ? TO find , do i do that this way : Then rearrange x = 0 satisfies . Does x = 0 satisfy ....?
Originally Posted by mr fantastic x = 0 satisfies . Does x = 0 satisfy ....? THanks , yeah it doesn't . But i still cant figure out how to find the range of x^2 .
Moral: do that as long as all pieces are positive.
Originally Posted by thereddevils THanks , yeah it doesn't . But i still cant figure out how to find the range of x^2 . The range of is the set of all non-negative numbers.
Originally Posted by thereddevils How about only one of its side is negative ? TO find , do i do that this way : math]25>x^2>4 [/tex] Then rearrange Originally Posted by mr fantastic x = 0 satisfies . Does x = 0 satisfy ....? Originally Posted by thereddevils THanks , yeah it doesn't . But i still cant figure out how to find the range of x^2 . Draw a graph of y = x^2 for -5 < x < 2. Now look at the range of values of x^2.
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